Inverted hydrocarbon-vapor lamp.



A rE J. MEYER. INVERTBD HYDROGARBON VAPOR LAMP.

' AlllL-IOATIIT FILED NOVlQ, 1908. 91 8,071 Patented Apr. 13, 1909.

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J. J.MEYER. INVERTED HYDRVOGAEBON VAPOR LAMP. APPLICATION FILED NOV. 18, 1908.

Patented Apr. 13,1909.

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Wtnesses Inventor:

JOSEPH J. MEYER, OF CHICAGO, ILLINOIS.

INVERTED HYDROCARBON-VAPOB LAMP.

Speciiication of Letters Patent.

Patented April 13, 1909.

Application filed November 18, 1908. Serial No. 463,313.

T o all 'whom it may concern:

Be it known that l, JOSEPH JonN MErEn, a citizen of the United States, and resident of Chicago, in the county of Cool; and State of Illinois, have invented certain new and use-- ful improvements in inverted Hydrocarbon- Vapor Lamps; and l do hereby declare that the following description of my said invention, taken in connection with the accompanying sheets of drawings, forms a full, clear, and exact specification, which will enable others skilled in the arts to which it appertains to make and use the same.

This invention has general reference to improvements in inverted hydro carbon lamps; and it consists, essentially, in the novel and peculiar combination of parts and details of construction as hereinafterl first fully set forth and described and then pointed out in the claims. l

rlhe object of this invention is the production of an efficient, serviceable, and convenient lamp in which a hydro-carbon or alcohol fuel generated into gas is emoloyed to heat a mantle, arranged in a downward, or inverted position, to incandescence and therebyT furnish a very brilliant light. To attain these object-s 1 construct this lamp as illustrated in the drawings already yreferred to, in which Figure 1 is an elevation of my improved lamp. Fig. 2 is a sectional elevation of the burner taken on line y y of Fig. 4. Fig. 3 is a sectional elevation taken on line a' 9c of Fig.

2, in the direction shown by an arrow in said Fig. 2. Fig. 4 is a plan, partly mutilated, to

enable the figure being drawn on a sufliciently large scale to clearly illustrate the parts. Fig. 5 is an elevation of a fragment 0f the supporting band, illustrating the means employed for retaining the burner in position.

Lilie parts are indicated by corresponding symbols of reference in all the figures.

A in the drawings designates an annular band which may be of any ornamental design, and it is planned to retain the burner proper in its correct position, and also to serve as a means for attachment of a globe, reflector or similar object E, which is held in position by the usual set-screws 2, engaging an outwardly iiaring flange 3, Fig. 1, on said globe E.

C is the mantle, which is attached to the x burner proper in a manner hereinafter to be described.

The burner proper consists of a central,

hollow, body 4, the interior 5 of which constitutes the mixing-chamber for the combustible gases. ln this body there are, in the opposing walls 6 and 7, apertures through which a generating tube 8 is passed, said tube 8 being of a length to pass diametrically through, and project from, the band A a short distance, it being screwthreaded at both ends to receive needlevalves 9 and 1 respectively. The needlevalve Q, which serves the purpose of a shutoff valve, is screwed onto one end of the tube 8, and it being of the well-known construction, a detailed description will be omitted. 1t has, however, a branch 13, which is eX- ternally screw-threaded to receive aunioncoupling 14, wherewith engages the hollow wire 15 or other suitable supply pipe through which the liquid-fuel is conveyed to the generator-tube 8. rThe opposite end of the tube S is fitted, by a screw-threaded connection, with the needle-valve 10 which is provided with a needle-seat 16, in which there is a tapering orifice through which the escaping gas passes in its passage to an induction-tube 17, which induction-tube is screwed into a screw-threaded aperture in the central body 4 above the generator-tube 8, and in axial line with the needle-valvetube 18; a lock-nut 19, on the inductiontube 17, and a similar lock-nut 20 on the generator-tube 8 being provided, if desired, to securely retain these parts in their proper position, the induction-tube being laterally adjustable by its screw-threaded engagement with the central body 4 to regulate the proper admission of air to said inductiontube, as hereinafter to be mentioned.

On the under side of the central body 4 there is an externally screw-threaded tubular boss 21 which communicates with the mixing-chamber 5, and over this boss there is screwed'a tube 22, carrying, near its lower end, a mantle-supporting device consisting of a laterally-projecting flange having upwardly-projecting lugs 24, behind which an annular ring 25 having radially, and outwardly-projecting, bars 26 is placed, said ring with its lugs being secured to the mantle C, and the latter therebyy held in proper position. This ring 25 with its lugs 24 is preferably made from a magnesia, or other refractory, composition of matter so as to withstand the intense heat to which it is subjected when the lamp is burning. The generating-tube 8 is filled with a substance or material which acts as a filter and if desired, as a heat-conductor, lamp-wicking, wire gauze, granulated metal &c. being suitable for this purpose. This lamp is suspended from a ceiling, wall-bracket &c., by a harp of which the hollow wire is a member; one or more rods 28 emanating from a central fitting 29 forming the other member of said harp. This second member 28 of the harp is forked at its end by the members 281 and 282, the ends of which connect with the band A by screw-threaded engagement and nuts, as clearly illustrated in Figs. 1 and 5. By this construction, the harp 27 may at any time be disconnected from the lamp by disconnecting the union-coupling 14 from the shut-off valve 9, and the bifurcated ends 281 and 282 from the band A.

In order that the burner proper may be securely retained Within the band A, I form on the interiorly-screw-threaded sockets of the valves 9 and 10 ianges 35, as illustrated in Figs. 1, 2 and 5, and secure these to the band A by screws 36.

The operation of this lamp is substantially as follows: The liquid fuel enters the generator tube 8 from any suitably-located tank, (not shown,) through the hollow wire system 15, Where the same is initially heated by a hand-torch in the usual manner, to evaporate the liquid fuel in the generatortube 8 and from which the gas passes through the vein 32 in the needle-valve 10 into, and through the needle-valve and the small orifice in the same, into the inductiontube 17 where the air rushes through the opening 35 in said tube to combine with the hydro-carbon gas and then passes into the mixing-chamber 5 and through the tube 22 into the interior of the mantle C, wherein the gas is ignited and thus produces the brilliant and steady fiarne which is regulated by the shut off valve 9, and when necessary also by the needle-valve 10. When the lamp is burning, there is always a current of air passing upwardly through the globe B and this air is heated by the incandescent mantle C and finally passes out of the lamp from the upper end of the band A. By coming in contact with the generator-tube 8 and also with the central body 4 and the induction tube 17, the heat ofthe generator-tube is kept up and the gas in the central body 4 superheated or regenerated so that the lamp may continue to function as long as the burner is supplied with fuel. To extinguish the lamp the shut- O' valve is closed to prevent access of liquid fuel to the generator-tube 8, and then the needle-valve closed to avoid gas, stili remaining in the burner, from escaping. I/Vhen desired, a small supply of fuel may be admitted to the burner so that when once lighted, the lamp may be kept continuously burning, such a small supply of fuel causing the lamp to burn very low and thus the flame to act as a pilotlight, as it were, for the burner. In order to provide for ready means for manipulating the valves 9 and 10, I provide their valvespindles with levers 33 and chains or cords 34, in the usual'manner.

I have heretofore stated that the induction-tube 17 is provided with an air-ingress opening 35. This opening is in the wail of the tube near its outer end and in close proximity to the needle-seat 16 over which the end of the tube 17 passes, so that by revolving this tube 17 from or toward the central body 4 the size of the opening 35 is enlarged or reduced, as the case may be, by reason of said tube being in screw-threaded connection with said central body 4. This opening 35 is always turned up, as shown in Fig. 2, so that a current of air or a draft in the room in which the lamp is burning, will not affect the light, which it might were the opening 35 turned toward the side or the bottom.

It is here to be remarked that while I have shown but one mantle in the drawings, it is evident that this lamp may be fitted up as a cluster-lamp by forming on the tube 22 one or more branches and providing each branch with a mantle-support and mantle in a manner readily understood by persons skilled in the arts to which this invention appertains.

In Fig. 2 I have shown the mantle-supporting device 23 attached to the tube 22 which, in this case, forms a continuation of the central body l, so as to locate the mantle C approximately in the center of the globe B. I may, however, vary this construction by screwing the mantle-supporting device 23 directly to the boss 21 of said central body L1, and in Fig. 3, I have shown such a construction in detail. This, and other minor changes, may be made in carrying out my invention without departing from the scope of the same.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent of the United States- 1. In an inverted hydro-carbon vapor lamp, a central, hollow, body 5 a generatortube in screw-threaded connection with, and passing through said body 5 an annular band; a shut-off valve on one end of said generatortube a needle-valve on the opposite end ofv said generator tube; a needle-seat on said needle-valve; an induction-tube above said generator-tube, said induction-tube being laterally-adjustable and passing with its free end over said needle-seat, there being an airadmission opening in said induction-tube in close proximity to said needle-seat; said generator-tube passing through said band and proiecting therefrom and having its two needle-valves attached to its free ends on the outside of said band said needle-valves hav-` ing flanges as described and screws in said lianges engaging the band.

2. In an inverted hydro-carbon vapor.

lamp, a hollow central body, a generator- I tral body; a mantle-supporting means betube in screw-threaded connection with said central body and passing through the same; a shut-off valve on one end of said generating-tube; a needle-valve at the other end thereof; an induction-tube above said generator-tube and in screw-threaded connection with said central body, said central body having a downwardly-projecting, externally screw-threaded, hollow, boss; and mantlesupporting means upon said boss, as set forth.

3. In an inverted hydrocarbon vapor tube in screw-threaded connection with said body and passing throu h the same 5 a downwardly projecting tubu ar boss on said cenlow said central body and secured thereto; an annular band a globe, and means in said band for retaining said globe removably in position on said band, there being needlevalves on both ends oi' said generator tube on the outside of said band and secured to said band, said globe being open at its lower end to permit air to enter said globe from below.

ln testimony that l claim the foregoing as my invention, l have hereunto set may hand l in the presence of two subscribing Witnesses. lamp, a central hollow body; a generator J. J. WEYER. Attest:

MICHAEL J. STARK, A. G. PETERSON. 

